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David T Johnston
Harvard University
$2,807,530
Attributed
$3,125,200
Total exposure
11
Grants
10
Lead (contact PI)
Attributed= this PI's even-split share of every grant they're on (the fair, additive number). Exposure = full size of all those grants.
Funding over time
peak $684.7K · FY2010–24$1M$750K$500K$250K$0
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Funding mix
By agency
NSF$3,125,200 · 11
By mechanism
—$3,125,200 · 11
Top collaborators
- Ines C Pereira1 shared
- Peter R Girguis1 shared
Grant awards (11)
Collaborative Research: PYRITE OXIDATION AND THE ENSUING TRIPLE O ISOTOPE COMPOSITION OF SULFATE$395,871
· FY2024 · GEO · contact PI
Collaborative Research: EAGER--Novel Sampling and Isotopic Characterization of Upper Strato- to Mesospheric Photochemistry$36,071
· FY2022 · GEO · contact PI
Clumped Oxygen Isotope Signature of Marine Dissolved Oxygen$545,517
· FY2021 · GEO · contact PI
Collaborative Research: Unlocking the Cenozoic/Cretaceous seawater sulfate record via inclusion of 17O in marine barite$413,392
· FY2020 · GEO · contact PI
Collaborative Research: Development of a novel way for understanding ancient Earth atmospheres and marine sulfate using the stable isotope of Oxygen (17O) in marine barite.$133,755
· FY2018 · GEO · contact PI
COLLABORATIVE RESEARCH: The role of iron-oxidizing bacteria in the sedimentary iron cycle: ecological, physiological and biogeochemical implications.$396,186
· FY2015 · GEO
Collaborative Research: Experimental calibration of the isotopic content of marine sulfate$74,015
· FY2015 · GEO · contact PI
Collaborative Research: Oxygen, Ecology and the Cambrian radiation of Animals$68,223
· FY2013 · GEO · contact PI
CAREER: Quantifying the flux and isotope effects associated with sulfur-bearing intermediate species within dissimilatory sulfate reduction$445,554
· FY2012 · GEO · contact PI
Directly quantifying the isotopic fractionation associated with the key enzymes in microbial sulfate reduction$239,154
· FY2012 · GEO · contact PI
The acquisition of a specialized sulfur isotope mass-spectrometer, construction of a custom designed, semi-automated sample preparation-fluorination system, and support for early..$377,462
· FY2010 · GEO · contact PI